Home / 3,139.20-4,714.56-1,601.28

Finding the Fourth Proportional to 3,139.20, 4,714.56 and 1,601.28

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Solution

The fourth proportional to 3,139.20, 4,714.56 and 1,601.28 is: 2,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.20 : 4,714.56 = 1,601.28 : x
  2. Step 2: Convert to fraction form
    3,139.20/4,714.56 = 1,601.28/x
  3. Step 3: Cross multiply
    3,139.20x = 4,714.56 × 1,601.28
  4. Step 4: Simplify right side
    3,139.20x = 7,549,330.64
  5. Step 5: Solve for x
    x = 7,549,330.64/3,139.20
  6. Step 6: Final answer
    x = 2,404.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.